Hi Aditya, FYI, the error/warning still remains. tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master head: 3d5895cd351757f69c9a66fb5fc8cf19f454d773 commit: f9bbc12ccb35ac8b3fa01cec1a19cb523a7707c7 scripts: kernel-doc: improve parsing for kernel-doc comments syntax date: 3 months ago config: arm64-randconfig-r015-20210722 (attached as .config) compiler: clang version 13.0.0 (https://github.com/llvm/llvm-project 9625ca5b602616b2f5584e8a49ba93c52c141e40) reproduce (this is a W=1 build): wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross # install arm64 cross compiling tool for clang build # apt-get install binutils-aarch64-linux-gnu # https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit... git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git git fetch --no-tags linus master git checkout f9bbc12ccb35ac8b3fa01cec1a19cb523a7707c7 # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=arm64 If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp(a)intel.com&gt; All warnings (new ones prefixed by >>): * Structure to hold attribute and block info for each sysfs entry drivers/platform/mellanox/mlxbf-pmc.c:94: warning: This comment starts with '/**', but isn't a kernel-doc comment. Refer Documentation/doc-guide/kernel-doc.rst * Structure to hold info for each HW block drivers/platform/mellanox/mlxbf-pmc.c:121: warning: This comment starts with '/**', but isn't a kernel-doc comment. Refer Documentation/doc-guide/kernel-doc.rst * Structure to hold PMC context info drivers/platform/mellanox/mlxbf-pmc.c:148: warning: This comment starts with '/**', but isn't a kernel-doc comment. Refer Documentation/doc-guide/kernel-doc.rst * Structure to hold supported events for each block vim +82 drivers/platform/mellanox/mlxbf-pmc.c 1a218d312e65ec3 Shravan Kumar Ramani 2020-10-08 80 1a218d312e65ec3 Shravan Kumar Ramani 2020-10-08 81 /** 1a218d312e65ec3 Shravan Kumar Ramani 2020-10-08 @82 * Structure to hold attribute and block info for each sysfs entry 1a218d312e65ec3 Shravan Kumar Ramani 2020-10-08 83 * @dev_attr: Device attribute struct 1a218d312e65ec3 Shravan Kumar Ramani 2020-10-08 84 * @index: index to identify counter number within a block 1a218d312e65ec3 Shravan Kumar Ramani 2020-10-08 85 * @nr: block number to which the sysfs belongs 1a218d312e65ec3 Shravan Kumar Ramani 2020-10-08 86 */ 1a218d312e65ec3 Shravan Kumar Ramani 2020-10-08 87 struct mlxbf_pmc_attribute { 1a218d312e65ec3 Shravan Kumar Ramani 2020-10-08 88 struct device_attribute dev_attr; 1a218d312e65ec3 Shravan Kumar Ramani 2020-10-08 89 int index; 1a218d312e65ec3 Shravan Kumar Ramani 2020-10-08 90 int nr; 1a218d312e65ec3 Shravan Kumar Ramani 2020-10-08 91 }; 1a218d312e65ec3 Shravan Kumar Ramani 2020-10-08 92 :::::: The code at line 82 was first introduced by commit :::::: 1a218d312e65ec396b2739056a8ea78493015f21 platform/mellanox: mlxbf-pmc: Add Mellanox BlueField PMC driver :::::: TO: Shravan Kumar Ramani <shravankr(a)nvidia.com&gt; :::::: CC: Hans de Goede <hdegoede(a)redhat.com&gt; --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org